Ermac, Sonya, Mileena, Quan, Smoke, Shinnok, Sektor, Sub, Liu, Predator, Jason, Cassie, Kitana, Takeda, Jacqui, Tremor, Raiden, Reptile are all better than D'Vorah imo.
I'd also throw in Kano, Scorpion, Kenshi, Tanya, Kung Jin, and Bo Rai Cho.
Could be more or less but D'Vorah can be safely excluded from the top ten imo.
Not that she's bad. Nobody's bad. A character not being top ten doesn't mean they're bad.